/** @return HTML response received last time postTo() or get() was called. */
 public String htmlResponse() {
   String content = response.getResponse();
   content = "<div>" + content + "</div>";
   return content;
 }
 /** @return response received last time postTo(), delete() or getFrom() was called. */
 public String response() {
   return safeFormatValue(response.getResponse());
 }